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All Journal Indonesian Journal of Geography Jurnal Mahasiswa Jurusan Teknik Pengairan Jurnal Teknik Pengairan: Journal of Water Resources Engineering Rekayasa Sipil Jurnal Teknik Sipil U Karst Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Irigasi Civil and Environmental Science Journal (CIVENSE) Jurnal DISPROTEK International Journal Of Science, Technology & Management (IJSTM) International Journal of Engineering, Science and Information Technology Jurnal Teknologi dan Rekayasa Sumber Daya Air
Lily Montarcih Limantara
Civil Engineering Department, Faculty Of Engineering, Brawijaya University, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Rasionalisasi Kerapatan Stasiun Hujan di Sub DAS Ngasinan Hulu Menggunakan Data Hujan Pengukuran dan Satelit Yumna Atika; Sri Wahyuni; Lily Montarcih Limantara
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 13 No. 2 (2022)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2022.013.02.09

Abstract

Kesalahan dalam pemantauan data hidrologi pada sebuah DAS dapat menyebabkan data yang dihasilkan tidak akurat serta dapat menyebabkan hasil perencanaan dan pengelolaan sumber daya air yang tidak efisien. Permasalahan lain pada Sub DAS Ngasinan Hulu adalah ketersediaan data curah hujan yang minim, time series data hujan pendek dan tidak lengkap, kurangnya petugas pengamat, kesalahan pembacaan data, dan kesulitan dalam mendapatkan data curah hujan dengan cepat. Penelitian ini bertujuan untuk mendapatkan rekomendasi jaringan serta jumlah stasiun hujan yang efektif dan efisien pada Sub DAS Ngasinan Hulu menggunakan data pengukuran dan satelit CHIRPS. Metode yang digunakan dalam penelitian ini, yang pertama adalah melakukan uji kesesuaian antara data hujan pengukuran dengan satelit CHIRPS. Lalu mengevaluasi jaringan stasiun hujan eksisting berdasarkan standar WMO. Selanjutnya, melakukan rasionalisasi stasiun hujan menggunakan metode Kagan-Rodda dengan data pengukuran dan satelit CHIRPS. Hasil dari penelitian ini menunjukkan bahwa data hujan satelit CHIRPS sudah sesuai dengan data hujan pengukuran. Lalu, menurut standar WMO Sub DAS Ngasinan Hulu cukup diwakilkan oleh 6 stasiun hujan. Selanjutnya setelah dilakukan rasionalisasi menggunakan metode Kagan-Rodda dengan kesalahan perataan < 10% didapatkan luas pengaruh dan sebaran stasiunhujan yang sudah cukup merata dengan menggunakan 6 stasiun hujan.
PENDUGAAN KEDALAMAN AIR TANAH DENGAN GEOLISTRIK RESISTIVITAS DI DESA TEGALWERU, KECAMATAN DAU, KABUPATEN MALANG Dian Chandrasasi; Jadfan Sidqi Fidari; Lily Montarcih
Jurnal Disprotek Vol 14, No 1 (2023)
Publisher : Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/jdpt.v14i1.3825

Abstract

The main problem with the availability of ground water is generally due to the relatively deep wells of residents (information from residents of more than 50 m), so that it requires very expensive production well excavation costs, especially for villagers. Many people in Tegalweru Village, Dau District, Malang Regency still have not utilized the potential of groundwater in the area. The use of clean water is still sourced from other than ground water. This is because there is no information related to the presence of groundwater. The purpose of the study was to determine the soil layer that has groundwater potential (aquifer) based on the distribution of resistivity values and can be used as a basis for consideration in making boreholes. Based on geoelectrical data processing and analysis, it can be concluded that the groundwater potential in the garden area has good groundwater potential by identifying several aquifer layers up to a depth of 145 meters. The geoelectric point rock lithology no. 01, 02 and 03 consists of top soil, tuff and breccia layers.
Rationalization of Rainfall Station Network in Welang Watershed Using Kagan-Rodda Method Safira Anisah Haromain; Sri Wahyuni; Lily Montarcih Limantara
U Karst Vol 6, No 2 (2022): NOVEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v6i2.2829

Abstract

Rationalizing rainfall station is important to get an effective and efficient number and distribution of rainfall stations. If rationalization isn’t carried out, it affect to operating and maintenance costs of rainfall stations and accuracy of data. This study aimed to evaluate existing rainfall station and rationalize rainfall station, so rainfall station’s location is evenly distributed. This study is located in Welang watershed with an area 477.78 km2. This research requires rainfall ground data from 9 rainfall stations and CHIRPS satellite rainfall data from Google Earth Engine. The data is tested with consistency, stationary, suitability, and rationalization based on World Meteorological Organization (WMO) standards and Kagan-Rodda method. Later, new rainfall station networks will be obtained with the influence area of rainfall stations suitable to WMO Standard. CHIRPS data is highly suitable with ground data, proven by high NSE, strong correlation, and low relative error, so CHIRPS data can be used for further analysis. According WMO, only 1 rainfall station in Welang watershed has been suitable for WMO standard. Those unsuitable with WMO standards need to be rationalized. Based rationalization results, with average error <10%, Welang watershed requires 4 rainfall stations by maintaining Lawang Station, moving Telebuk to Station B, Selowongko to Station C, and Tutur to Station D. The influence area of recommendation rainfall stations have been suitable to WMO Standards and obtained even distribution rainfall stations. This recommendation are expected to be considered by relevant institutes to move the location of the rainfall station to get more accurate rainfall data.
Rationalization of Rainfall Station Network in Welang Watershed Using Kagan-Rodda Method Safira Anisah Haromain; Sri Wahyuni; Lily Montarcih Limantara
U Karst Vol. 6 No. 2 (2022): NOVEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v6i2.2829

Abstract

Rationalizing rainfall station is important to get an effective and efficient number and distribution of rainfall stations. If rationalization isn’t carried out, it affect to operating and maintenance costs of rainfall stations and accuracy of data. This study aimed to evaluate existing rainfall station and rationalize rainfall station, so rainfall station’s location is evenly distributed. This study is located in Welang watershed with an area 477.78 km2. This research requires rainfall ground data from 9 rainfall stations and CHIRPS satellite rainfall data from Google Earth Engine. The data is tested with consistency, stationary, suitability, and rationalization based on World Meteorological Organization (WMO) standards and Kagan-Rodda method. Later, new rainfall station networks will be obtained with the influence area of rainfall stations suitable to WMO Standard. CHIRPS data is highly suitable with ground data, proven by high NSE, strong correlation, and low relative error, so CHIRPS data can be used for further analysis. According WMO, only 1 rainfall station in Welang watershed has been suitable for WMO standard. Those unsuitable with WMO standards need to be rationalized. Based rationalization results, with average error <10%, Welang watershed requires 4 rainfall stations by maintaining Lawang Station, moving Telebuk to Station B, Selowongko to Station C, and Tutur to Station D. The influence area of recommendation rainfall stations have been suitable to WMO Standards and obtained even distribution rainfall stations. This recommendation are expected to be considered by relevant institutes to move the location of the rainfall station to get more accurate rainfall data.
Study On The Value Of A Medium Reservoir Storage Capacity (Case Study: Karalloe Reservoir) Widandi Soetopo; Lily Montarcih Limantara; Agustina Pagatiku
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 10 No. 1 (2019)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (276.673 KB) | DOI: 10.21776/ub.pengairan.2019.010.01.6

Abstract

In this article, the value of storage capacity of a medium sized Karalloe reservoir is discussed. Together with an uncontrolled weir, the Karalloe reservoir is supplying an irrigation area. The purpose of the study is to estimate the value of reservoir storage capacity at the various storage states and at different dependable inflow levels. The Linear Programming model is used to optimize the irrigation benefit for various storage capacity and various dependable inflow levels. The results are used to estimate the values of storage capacity at various conditions. The results show that for inflow of the dry year, there is no value for the additional storage capacity. But for inflow of the wetter years, there are significant values for adding more storage capacity
Perbandingan Metode Evaporasi Potensial Di Badan Meteorologi Klimatologi Dan Geofisika Sawahan Kabupaten Nganjuk, Jawa Timur Ery Suhartanto; Lily Montarcih Limantara; Hana Arum Rossy Tamaya
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 11 No. 1 (2020)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2020.011.01.01

Abstract

Penelitian ini bertujuan untuk mendapatkan model empiris yang sesuai untuk estimasi evaporasi pada wilayah Nganjuk. Studi ini dilakukan di stasiun meteorologi Sawahan yang digunakan untuk menghitung evaporasi dengan menggunakan metode Blaney-Criddle, metode Penman, metode Radiasi, metode Turc, metode Hamon, metode Christiansen serta modifikasi menggunakan metode Regresi Linier Berganda. Hasil dari masing-masing metode dibandingkan dengan hasil yang lain dan dilakukan uji validasi menggunakan kesalahan relatif (Kr), uji Efisiensi Nash-Sutcliffe (ENS) dan Root Mean Square Error (RMSE). Berdasarkan hasil yang diperhitungkan dapat disimpulkan bahwa metode yang sesuai adalah metode regresi linier berganda dengan hasil uji validasi yang meliputi nilai kesalahan relatif (Kr) adalah 1.15, nilai uji Efisiensi Nash Sutcliffe (ENS) adalah 0.70 dan nilai Root Mean Square Error (RMSE) adalah 0.18.
Rationalization of Rainfall Station Density in the Jatiroto Sub-Watershed Using Ground and Satellite Rainfall Data Megantara, Anggit Gilang; Wahyuni, Sri; Limantara, Lily Montarcih
Civil and Environmental Science Journal (CIVENSE) Vol. 5 No. 2 (2022)
Publisher : Fakultas Teknik Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2022.00502.3

Abstract

This study uses ground and CHIRPS data to rationalize the density of rainfall stations in the Jatiroto Sub-watershed, Lumajang Regency. This study aimed to determine the suitability of the CHIRPS satellite rainfall data to the measurement data. In addition, it determines the density of rainfall stations based on WMO standards. Also, the Kagan-Rodda method uses measurement and satellite data to determine rainfall station recommendations' results. The method used for the suitability test uses the value of RMSE, NSE, Correlation Coefficient, and Relative Error. And the WMO standard for analyzing the number of rainfall station. Knowing the rationalization and recommendations for placing rainfall stations using the Kagan-Rodda method by considering WMO standards, root mean square error, and interpolation errors. The results obtained include the appropriateness of satellite data, the number of rainfall stations at the research location according to WMO standards, and recommendations for rainfall stations based on Kagan-Rodda.
Studi Optimasi Pemanfaatan Air Irigasi Menggunakan Metode Program Linear Pada Daerah Irigasi Babakan Kabupaten Brebes Salimah, Ghaida Nurul; Limantara, Lily Montarcih; Prayogo, Tri Budi
Jurnal Teknologi dan Rekayasa Sumber Daya Air Vol. 4 No. 2 (2024): Jurnal Teknologi dan Rekayasa Sumber Daya Air (JTRESDA)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtresda.2024.004.02.160

Abstract

Daerah Irigasi Babakan mempunyai luas bakuan sawah sebesar 2035 Ha yang terletak di Kabupaten Brebes Provinsi Jawa Tengah. Daerah irigasi Babakan mendapatkan debit yang berasal dari debit intake Bendung Cisadap dan mendapatkan tambahan debit (suplesi) dari Bendung Nambo. Daerah Irigasi Babakan mempunyai kondisi neraca air yang tidak seimbang. Terdapat defisit pada beberapa periode tanam yang mengakibatkan berkurangnya produktivitas daerah irigasi. Oleh karena itu perlu dilakukan optimasi terhadap luas lahan dan pola tata tanam supaya dapat menunjang produktivitas pertanian guna mendapatkan keutungan pertanian semaksimal mungkin. Optimasi dilakukan dengan cara membuat 4 PTT alternatif dan dioptimasi menggunakan bantuan solver pada Microsoft Excel. Kondisi neraca air pada PTT eksisting sebelum dioptimasi terdapat 29,17% defisit. Setelah dioptimasi tidak terdapat kondisi defisit dan mengalami peningkatan keuntungan hasil pertanian. Pola tata tanam terbaik dipilih berdasarkan keuntungan hasil pertanian yang paling besar, dimana PTT alternatif 3 menjadi yang terbaik dengan keuntungan sebesar Rp89.345.721.554 dengan intensitas tanam pada kondisi Q80%+suplesi.
Rasionalisasi Kerapatan Pos Stasiun Hujan dan Pos Duga Air Sub DAS Wonosari dengan Metode Stepwise Ramadian, Bagas; Limantara, Lily Montarcih; Fidari, Jadfan Sidqi
Jurnal Teknologi dan Rekayasa Sumber Daya Air Vol. 5 No. 2 (2025): Jurnal Teknologi dan Rekayasa Sumber Daya Air (JTRESDA)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtresda.2025.005.02.074

Abstract

Evaluasi kerapatan jaringan stasiun hujan merupakan aspek kritis dalam pemantauan hidrologi yang efektif. Penelitian ini bertujuan menganalisis kecukupan kerapatan jaringan 17 stasiun hujan dan satu stasiun pencatat tinggi muka air di Sub-DAS Wonosari, Jawa Timur, Indonesia, berdasarkan standar World Meteorological Organization (WMO). Studi ini menggunakan data curah hujan dan debit air periode 2013-2022, dengan metode analisis meliputi uji konsistensi menggunakan Double Mass Curve Analysis dan RAPS (Rescaled Adjusted Partial Sums), serta analisis kerapatan jaringan menggunakan metode Stepwise dan Poligon Thiessen. Hasil penelitian menunjukkan bahwa Stasiun Kejayan memiliki korelasi tertinggi dengan stasiun pencatat tinggi muka air (R=0,712). Kombinasi optimal lima stasiun (Ancar, Klabang, Pinang Pait, Sumber Dumpyong, dan Sukokerto) menghasilkan koefisien korelasi yang sangat kuat (R=0,998). Distribusi stasiun yang ada dinilai belum optimal karena beberapa stasiun memiliki cakupan area yang terlalu kecil (7,83-79,43 km²). Penelitian ini merekomendasikan rasionalisasi jaringan menjadi lima stasiun hujan dengan distribusi merata untuk mengoptimalkan pemantauan hidrologi sekaligus menjaga kualitas data dan efisiensi operasional.
Studi Optimasi Pemberian Air Irigasi Pada Daerah Irigasi Menturus Kabupaten Mojokerto Dengan Program Dinamik Tae Lake, Geovani Valerian Maria; Limantara, Lily Montarcih; Moh. Sholichin
Jurnal Teknologi dan Rekayasa Sumber Daya Air Vol. 5 No. 2 (2025): Jurnal Teknologi dan Rekayasa Sumber Daya Air (JTRESDA)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtresda.2025.005.02.118

Abstract

Daerah Irigasi Menturus memiliki permasalahan pada kondisi eksistingnya yaitu kondisi defisit air dimana jumlah kebutuhan air lebih banyak dibandingkan dengan ketersediaannya yang terjadi pada Musim Kemarau I dan II. Oleh karena itu, dilakukan pengaoptimasian alokasi air menggunakan program dinamik deterministik. Tujuan dari penelitian ini adalah untuk dapat memaksimalkan keuntungan hasil tani dengan cara membagi daerah irigasi menjadi beberapa stage agar nantinya air akan dilokasikan ke setiap stage sesuai kebutuhan agar mendapatkan keuntungan maksimal. Fungsi kendala dalam optimasi adalah debit yang tersedia dan luas lahan. Fungsi tujuan optimasi adlaah keuntungan maksimal hasil tani. Hasil dari optimasi dengan program dinamik didapatkan peningkatan luas lahan sebesar 14,72% di musim tanam I, 23,12% di musim tanam II dan 6,00% di musim tanam III dengan keuntungan untuk setiap musim tanam adalah Rp. 20.688.276.913,90, Rp. 30.669.300.111,49, dan Rp. 12.791.193.118,88.
Co-Authors A.A. Ketut Agung Cahyawan W Achmad Hariyadi Adiputra, Dhimas Satibi Agi Putra Kharisma, Agi Putra Agung Rahmadi Agus Priombodo Agustina Pagatiku Alamsyah, Muhammad Bayu Ambarwati, Arum Nurwidya Aniek Masrevaniah Arfiyanti, Anandini Fatma Arief Andy Soebroto Arif Rahmad Darmawan Ariston Samosir Azhari, Zeinnia Alya Azwar Annas Kunaifi Chandrasasi, Dian Damayanti, Alvine Cinta Dian Chandrasasi Dian Sisinggih Diando, Azamulail Djunaedi Djunaedi Donny Harisuseno Dwi Priyantoro Edison Hukom Eka Agus Subiyantoro Emma Yuliani Endang Purwati RN Ery Suhartanto Ery Suhartanto Ery Suhartanto Fandianto, Erno Fathia, Ayasha Fauziyah, Fauziyah Februanto, Aaron Jeremy Ferina, Marisa Ayu Hana Arum Rossy Tamaya Haris Djafar, Haris Harisuseno, Donny Harri Pranowo Ikrar Hanggara, Ikrar Ilham, Rendy Khoirul Indra Kusuma Sari Islamiyanto, Yudho Putra itojo Tri Juwono Iwan Nursyriwan Jadfan Sidqi Fidari Jamhari Jamhari Juma'a, Muhammad Walidi Juni, Riska Wulan Kharistanto, Robertus Tegar Kurnia Lalu Sigar Canggih Ranesa, Lalu Sigar Canggih Lenny Febriana Ideawati, Lenny Febriana Linda Prasetyorini Lucky Dyah Ekorini M. Bisri Mahendra, Hardiman Maulida Hayati Megantara, Anggit Gilang Mochammad Ibrahim Moh. Sholichin Moh. Sholichin Mohammad Bisri Mokhamad Rusdha Maulana Muhamad Rodhita Muhammad Bisri Muhammad Ilham nalurita, sari Nuf'a, Hilma Nugrahanto, Bagus Aji Nurdiyanto Nurdiyanto, Nurdiyanto nurfitriani, Alvina nurfitriani, Alvina Nurul Hidayat Pitojo Tri Juwono Pramasela, Pramasela Putra, Whima Regianto Qomarul Huda, Qomarul Rachma, Siti Talitha Rahmah Dara Lufira Ramadian, Bagas ramdhani, fitroh Respatiningrum, Amalia Wara Rini Wahyu Sayekti Rini, Firda Agustiya Rispiningtati Rispiningtati Riwin Andono Riyanto Haribowo Rony Rudson Rossy Tamaya, Hana Arum Runi Asmaranto Safira Anisah Haromain Safira Anisah Haromain Salimah, Ghaida Nurul Salsabila, Nadia Semuel J. Ch. Ahab, Semuel J. Ch. Shihab, Muhammad Qurais Sri Wahyuni Sri Wahyuni Sri Wahyuni Suhardjono Suhardjono Sulianto Sulianto Suwanto Marsudi Tae Lake, Geovani Valerian Maria Tri Budi Prayogo Tri Budi Prayogo, Tri Budi Triwidianto, Heru Tyas Daru, Tyas Ussy Andawayanti Very Dermawan Wahyuni, Sri Wahyuni, Sri Wayan Firdaus Mahmudy Whima Regianto Putra Widandi Soetopo Yanuar Wicaksono, R. Fajar Yudha Mediawan Yumna Atika